Hitachi J300U Series Instruction Manual page 133

Operation conditions
No.
Trial running of motor
1
only
Light load, low inertia
2
load
Acceleration and
3
deceleration of light
load or low inertia load
Phenomena
The motor runs unsmoothly,
and the revolution fails to increase.
The motor current pulsates.
Revolution
t
0.1 sec. 0.1 sec.
Revolution
t
The motor revolution fails to
increase smoothly
NOTE: The setting methods shown below
Improvements
apply to DOP and DRW operations.
1. When V/f control or sensor-less vector
control is selected
Function mode
F-36
CARRIER 16.0 kHz 8.0 kHz
Decrease the initial value.
2. When V/f control is selected
Function mode
F-04
CONTROL VC
F-05
AUX R1 00.223 00.323
Increase the initial value.
3. When sensor-less vector control is selected
Function mode
F-04
CONTROL SLV
F-05
AUX DATA NOR
2
a. AUX J 001.22 kgm
Decrease the initial value.
b. AUX Kp 002.00 003.00
Increase the initial value.
Use and solely or combine any of
a b
and to adjust the motor constant.
b
Display, etc.
12.3 Function mode
F-36 (P.12-14)
12.3 Function mode
F-04 (P.12-5)
12.3 Function mode
F-05 (P.12-5)
NOTE: Select AUT if
the automatic
tuning data is
used.)
2
000.22 kgm
Use the second func-
tion for switching
operation of two
motors.
a